摘要
为研究隔离开关操作条件下GIS的瞬态辐射电磁场特性,该文开展特快速高频辐射电磁场测量装置的研制。开关操作辐射电磁场具有上升陡度大、幅值高、频带宽等特点,因此该文选择双锥天线和电小环天线进行电场和磁场的测量,设计特快速辐射电场、磁场与VFTO联合测量方案。通过特快速高频辐射电磁场测量装置对550 kV GIS试验平台隔离开关操作产生的特快速辐射电场、磁场进行测量。结果表明:开关操作时GIS变电站电磁环境极其恶劣,分闸时电场强度可达3.5 kV/m,磁场强度可达220 A/m;合闸时电场强度为2.5 kV/m,磁场强度为150 A/m。单次脉冲持续时间约5μs,主要频率成分为8 MHz,46 MHz,58 MHz。
In order to research the transient radiated electromagnetic field characteristics of GIS under isolated switch operating conditions,the paper carries out the development of an ultra-fast high frequency radiated electromagnetic field measurement device.The radiation electromagnetic field of switch operation has the characteristics of large steepness of rise,high amplitude and wide frequency band,so this paper selects biconical antenna and electric small loop antenna for electric field and magnetic field measurement,and designs a joint measurement scheme of ultra-fast radiation electric field,magnetic field and VFTO.The measurements of the electric and magnetic fields generated by the isolation switch operation of the 550 kV GIS test platform are carried out by means of an ultra-fast high frequency radiation electromagnetic field measurement device.The results show that the electromagnetic environment of the GIS substation is extremely harsh during switch operation,with the electric field intensity reaching 3.5 kV/m and the magnetic field intensity reaching 220 A/m when the switch is opened;The electric field intensity reaching 2.5 kV/m and the magnetic field intensity reaching 150 A/m when the switch is closed.the duration of a single pulse is about 5μs and the main frequency components are 8 MHz,46 MHz and 58 MHz.
作者
完朋朋
吴细秀
杨涛
文博
侯博文
龙国华
WAN Pengpeng;WU Xixiu;YANG Tao;WEN Bo;HOU Bowen;LONG Guohua(Wuhan University of Technology,Wuhan 430070,China;Electric Power Research Institute of Guizhou Power Grid Co.,Ltd.,Guiyang 550002,China;Electric Power Research Institute State Grid Jiangxi Electric Power Co.,Ltd.,Nanchang 330096,China)
出处
《中国测试》
CAS
北大核心
2024年第7期115-123,共9页
China Measurement & Test
基金
贵州电网有限责任公司科技项目(066600KK52170049)。
关键词
隔离开关
电磁辐射
天线
数据处理
单次脉冲
GIS
isolating switch
electromagnetic radiation
antenna
data processing
single pulse
GIS
